Grusel++ of the month

/******************************************************************************/
/*                                                                            */
/*                                                         FILE: february.cpp */
/*                                                                            */
/*  My first template< template >                                             */
/*  =============================                                             */
/*                                                                            */
/*  Compiled and tested with Visual C++ V7.0                                  */
/*                                                                            */
/*  V1.00   28-FEB-2003   P. Tellenbach   http://www.heimetli.ch/             */
/*                                                                            */
/******************************************************************************/

#include <iostream>

using namespace std ;

class hello
{
 public:
   hello()
   {
     cout << "Hello " ;
   }
} ;

class world
{
 public:
   world()
   {
     cout << "world !" << endl ;
   }
} ;

template< typename T >
class Template
{
   T t ;
} ;

template< template< class T > class C >
class TemplateTemplate
{
   C< hello > h ;
   C< world > w ;
} ;

int main()
{
   TemplateTemplate< Template > t ;

   return 0 ;
}

Update 24. February 2023

This program compiles and runs without any changes.